MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous links pointing to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users. The presence of these links suggests an attempt to distribute malware or conduct phishing attacks.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/160825e8ea33e9---jeramano.pdf
- https://twr1115.net/files/fckeditor/file/pobade.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/160a631a7ec083---bekamogozikugopetiw.pdf
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/lg3b3fbkute6iepcgujufqb484/45531851563.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a29914293---juvom.pdf
- http://chikatere.com/Upload/files/lowilaso.pdf
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/rjovcpnbn6r8grahhp7ju486o3/42134187480.pdf
- http://airholic.com/UpFiles/WebEditorFiles/file/petelefikatexu.pdf
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160896112195ee---6836951556.pdf
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/1609bf7f0b93bf---55117997493.pdf
- http://matkinhantai.com/luutru/files/39971131838.pdf
- https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/f3kmnqtobe5njb0d0ntujjr1bu/77305530772.pdf
- https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/uua7le41vh5f772ujot39bolcv/14673199815.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/86ogo6unme12u3bo6uupugqlm5/89677330946.pdf
- https://beaufortbond.com/wp-content/plugins/super-forms/uploads/php/files/564b09a2b16fb08bd367c75d5c0c0097/12689306775.pdf
- https://sudhirsachdevaclasses.com/ci/userfiles/files/7814298077.pdf
- http://cuatudongbinhduong.net/uploads/files/28704516075.pdf
- https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076be5fcab2d---44777103089.pdf
- http://nicenpos.com/userData/board/file/ponibez.pdf
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/cpe0sl0gj7k9jg48v1pc9t7tv1/95644853908.pdf
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b6222f8e82c---terokepivovirubovetazunor.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/p8270aoiq97k52m236lt76t7a6/25409644903.pdf
- https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb18082342---99687255947.pdf
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/sc46lgc8j0uf7eu28tikbccai7/91128341234.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=1500+usd+to+thb
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000fd8e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD8E | 16792 bytes |
font_01_sfnt_off000115a0.binde94e591cf4c37f48014dc2ea2a75575dd657344a34f6d0671c47ec2fa368363 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x115A0 | 16680 bytes |
font_02_sfnt_off00014161.bin6c5a92a3f89f562d39257e6993c8b8e1f865b9af38e1167e73ebad85712da68a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14161 | 10160 bytes |
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